Sharing a photo by making it available online constitutes sharing even if no one ever looks at it. This “frozen sharing” creates great potential value. Enormous databases of images, text, videos, and so on include many items that have never been looked at or read, but it costs little to keep those things available, and they may be useful to one person, years in the future. That tiny bit of value may seem too small to care about, but with two billion potential providers, and two billion potential users, tiny value times that scale is huge in aggregate. Much creative energy that was previously personal has acquired a shared component, even if only in frozen sharing.
— Clay Shirky, Cognitive Surplus
Our fellow MMO bloggers will be familiar with the phenomenon of getting comments or sudden bursts of hits on old posts. Dig those trailing comment dates as people still reminisce about AC2, wonder what happened at the end of Borderlands, and read your Death Knight leveling guide from 2008. Feel free to comment with a link your favorite “wow, people are still looking at this” post from your site.